Kaloyan of Bulgaria vs Tiberius II Constantine

Kaloyan received papal recognition as Emperor of Bulgaria from Pope Innocent III, legitimizing his rule and the Bulgarian state. This diplomatic move strengthened Bulgaria's position in the region.

Kaloyan, Tsar of Bulgaria, defeated the Latin Empire of Constantinople at the Battle of Adrianople. The Latin Emperor Baldwin I was captured and later died in captivity, dealing a severe blow to the Crusader state.

Kaloyan besieged Constantinople, the capital of the Latin Empire, but was unable to capture it. He died during the campaign, possibly assassinated, ending the siege.

Tiberius II was known for his generosity, reducing taxes, distributing money to the poor, and remitting debts. He spent lavishly on public works and charity, earning him the epithet 'friend of the poor.' However, his spending depleted the treasury that Anastasius I had accumulated.

Tiberius II Constantine was proclaimed emperor by the Byzantine Senate and people after the death of Justin II. He was chosen for his popularity and reputation for generosity. His accession was marked by a distribution of gold to the people and a remission of taxes.

Tiberius II led campaigns against the Avars and Slavs who were raiding the Balkans. He achieved some successes, including the recapture of Sirmium in 582, but the Avars continued to pose a threat. His military efforts were hampered by limited resources and the ongoing war with Persia.

Tiberius II died after a short illness, having named the general Maurice as his successor. He married Maurice to his daughter Constantina and elevated him to co-emperor before his death. This ensured a smooth transition of power and continued the dynasty.